xref: /dragonfly/sys/dev/netif/txp/if_txp.c (revision 8a7bdfea)
1 /*	$OpenBSD: if_txp.c,v 1.48 2001/06/27 06:34:50 kjc Exp $	*/
2 /*	$FreeBSD: src/sys/dev/txp/if_txp.c,v 1.4.2.4 2001/12/14 19:50:43 jlemon Exp $ */
3 /*	$DragonFly: src/sys/dev/netif/txp/if_txp.c,v 1.47 2008/03/10 12:59:52 sephe Exp $ */
4 
5 /*
6  * Copyright (c) 2001
7  *	Jason L. Wright <jason@thought.net>, Theo de Raadt, and
8  *	Aaron Campbell <aaron@monkey.org>.  All rights reserved.
9  *
10  * Redistribution and use in source and binary forms, with or without
11  * modification, are permitted provided that the following conditions
12  * are met:
13  * 1. Redistributions of source code must retain the above copyright
14  *    notice, this list of conditions and the following disclaimer.
15  * 2. Redistributions in binary form must reproduce the above copyright
16  *    notice, this list of conditions and the following disclaimer in the
17  *    documentation and/or other materials provided with the distribution.
18  * 3. All advertising materials mentioning features or use of this software
19  *    must display the following acknowledgement:
20  *	This product includes software developed by Jason L. Wright,
21  *	Theo de Raadt and Aaron Campbell.
22  * 4. Neither the name of the author nor the names of any co-contributors
23  *    may be used to endorse or promote products derived from this software
24  *    without specific prior written permission.
25  *
26  * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
27  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
28  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
29  * ARE DISCLAIMED.  IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
36  * THE POSSIBILITY OF SUCH DAMAGE.
37  */
38 
39 /*
40  * Driver for 3c990 (Typhoon) Ethernet ASIC
41  */
42 
43 #include <sys/param.h>
44 #include <sys/systm.h>
45 #include <sys/sockio.h>
46 #include <sys/mbuf.h>
47 #include <sys/malloc.h>
48 #include <sys/kernel.h>
49 #include <sys/socket.h>
50 #include <sys/serialize.h>
51 #include <sys/bus.h>
52 #include <sys/rman.h>
53 #include <sys/thread2.h>
54 
55 #include <net/if.h>
56 #include <net/ifq_var.h>
57 #include <net/if_arp.h>
58 #include <net/ethernet.h>
59 #include <net/if_dl.h>
60 #include <net/if_types.h>
61 #include <net/vlan/if_vlan_var.h>
62 #include <net/vlan/if_vlan_ether.h>
63 
64 #include <netinet/in.h>
65 #include <netinet/in_systm.h>
66 #include <netinet/in_var.h>
67 #include <netinet/ip.h>
68 #include <netinet/if_ether.h>
69 #include <sys/in_cksum.h>
70 
71 #include <net/if_media.h>
72 
73 #include <net/bpf.h>
74 
75 #include <vm/vm.h>              /* for vtophys */
76 #include <vm/pmap.h>            /* for vtophys */
77 
78 #include "../mii_layer/mii.h"
79 #include "../mii_layer/miivar.h"
80 
81 #include <bus/pci/pcidevs.h>
82 #include <bus/pci/pcireg.h>
83 #include <bus/pci/pcivar.h>
84 
85 #define TXP_USEIOSPACE
86 #define __STRICT_ALIGNMENT
87 
88 #include "if_txpreg.h"
89 #include "3c990img.h"
90 
91 /*
92  * Various supported device vendors/types and their names.
93  */
94 static struct txp_type txp_devs[] = {
95 	{ PCI_VENDOR_3COM, PCI_PRODUCT_3COM_3CR990TX95,
96 	    "3Com 3cR990-TX-95 Etherlink with 3XP Processor" },
97 	{ PCI_VENDOR_3COM, PCI_PRODUCT_3COM_3CR990TX97,
98 	    "3Com 3cR990-TX-97 Etherlink with 3XP Processor" },
99 	{ PCI_VENDOR_3COM, PCI_PRODUCT_3COM_3C990B,
100 	    "3Com 3cR990B-TXM Etherlink with 3XP Processor" },
101 	{ PCI_VENDOR_3COM, PCI_PRODUCT_3COM_3CR990SVR95,
102 	    "3Com 3cR990-SRV-95 Etherlink Server with 3XP Processor" },
103 	{ PCI_VENDOR_3COM, PCI_PRODUCT_3COM_3CR990SVR97,
104 	    "3Com 3cR990-SRV-97 Etherlink Server with 3XP Processor" },
105 	{ PCI_VENDOR_3COM, PCI_PRODUCT_3COM_3C990BSVR,
106 	    "3Com 3cR990B-SRV Etherlink Server with 3XP Processor" },
107 	{ 0, 0, NULL }
108 };
109 
110 static int txp_probe	(device_t);
111 static int txp_attach	(device_t);
112 static int txp_detach	(device_t);
113 static void txp_intr	(void *);
114 static void txp_tick	(void *);
115 static int txp_shutdown	(device_t);
116 static int txp_ioctl	(struct ifnet *, u_long, caddr_t, struct ucred *);
117 static void txp_start	(struct ifnet *);
118 static void txp_stop	(struct txp_softc *);
119 static void txp_init	(void *);
120 static void txp_watchdog	(struct ifnet *);
121 
122 static void txp_release_resources (device_t);
123 static int txp_chip_init (struct txp_softc *);
124 static int txp_reset_adapter (struct txp_softc *);
125 static int txp_download_fw (struct txp_softc *);
126 static int txp_download_fw_wait (struct txp_softc *);
127 static int txp_download_fw_section (struct txp_softc *,
128     struct txp_fw_section_header *, int);
129 static int txp_alloc_rings (struct txp_softc *);
130 static int txp_rxring_fill (struct txp_softc *);
131 static void txp_rxring_empty (struct txp_softc *);
132 static void txp_set_filter (struct txp_softc *);
133 
134 static int txp_cmd_desc_numfree (struct txp_softc *);
135 static int txp_command (struct txp_softc *, u_int16_t, u_int16_t, u_int32_t,
136     u_int32_t, u_int16_t *, u_int32_t *, u_int32_t *, int);
137 static int txp_command2 (struct txp_softc *, u_int16_t, u_int16_t,
138     u_int32_t, u_int32_t, struct txp_ext_desc *, u_int8_t,
139     struct txp_rsp_desc **, int);
140 static int txp_response (struct txp_softc *, u_int32_t, u_int16_t, u_int16_t,
141     struct txp_rsp_desc **);
142 static void txp_rsp_fixup (struct txp_softc *, struct txp_rsp_desc *,
143     struct txp_rsp_desc *);
144 static void txp_capabilities (struct txp_softc *);
145 
146 static void txp_ifmedia_sts (struct ifnet *, struct ifmediareq *);
147 static int txp_ifmedia_upd (struct ifnet *);
148 #ifdef TXP_DEBUG
149 static void txp_show_descriptor (void *);
150 #endif
151 static void txp_tx_reclaim (struct txp_softc *, struct txp_tx_ring *);
152 static void txp_rxbuf_reclaim (struct txp_softc *);
153 static void txp_rx_reclaim (struct txp_softc *, struct txp_rx_ring *);
154 
155 #ifdef TXP_USEIOSPACE
156 #define TXP_RES			SYS_RES_IOPORT
157 #define TXP_RID			TXP_PCI_LOIO
158 #else
159 #define TXP_RES			SYS_RES_MEMORY
160 #define TXP_RID			TXP_PCI_LOMEM
161 #endif
162 
163 static device_method_t txp_methods[] = {
164         /* Device interface */
165 	DEVMETHOD(device_probe,		txp_probe),
166 	DEVMETHOD(device_attach,	txp_attach),
167 	DEVMETHOD(device_detach,	txp_detach),
168 	DEVMETHOD(device_shutdown,	txp_shutdown),
169 	{ 0, 0 }
170 };
171 
172 static driver_t txp_driver = {
173 	"txp",
174 	txp_methods,
175 	sizeof(struct txp_softc)
176 };
177 
178 static devclass_t txp_devclass;
179 
180 DECLARE_DUMMY_MODULE(if_txp);
181 DRIVER_MODULE(if_txp, pci, txp_driver, txp_devclass, 0, 0);
182 
183 static int
184 txp_probe(device_t dev)
185 {
186 	struct txp_type *t;
187 	uint16_t vid, did;
188 
189 	vid = pci_get_vendor(dev);
190 	did = pci_get_device(dev);
191 
192 	for (t = txp_devs; t->txp_name != NULL; ++t) {
193 		if ((vid == t->txp_vid) && (did == t->txp_did)) {
194 			device_set_desc(dev, t->txp_name);
195 			return(0);
196 		}
197 	}
198 
199 	return(ENXIO);
200 }
201 
202 static int
203 txp_attach(device_t dev)
204 {
205 	struct txp_softc *sc;
206 	struct ifnet *ifp;
207 	uint16_t p1;
208 	uint32_t p2;
209 	uint8_t enaddr[ETHER_ADDR_LEN];
210 	int error = 0, rid;
211 
212 	sc = device_get_softc(dev);
213 	callout_init(&sc->txp_stat_timer);
214 
215 	ifp = &sc->sc_arpcom.ac_if;
216 	if_initname(ifp, device_get_name(dev), device_get_unit(dev));
217 
218 	pci_enable_busmaster(dev);
219 
220 	rid = TXP_RID;
221 	sc->sc_res = bus_alloc_resource_any(dev, TXP_RES, &rid, RF_ACTIVE);
222 
223 	if (sc->sc_res == NULL) {
224 		device_printf(dev, "couldn't map ports/memory\n");
225 		return(ENXIO);
226 	}
227 
228 	sc->sc_bt = rman_get_bustag(sc->sc_res);
229 	sc->sc_bh = rman_get_bushandle(sc->sc_res);
230 
231 	/* Allocate interrupt */
232 	rid = 0;
233 	sc->sc_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
234 	    RF_SHAREABLE | RF_ACTIVE);
235 
236 	if (sc->sc_irq == NULL) {
237 		device_printf(dev, "couldn't map interrupt\n");
238 		error = ENXIO;
239 		goto fail;
240 	}
241 
242 	if (txp_chip_init(sc)) {
243 		error = ENXIO;
244 		goto fail;
245 	}
246 
247 	sc->sc_fwbuf = contigmalloc(32768, M_DEVBUF,
248 	    M_WAITOK, 0, 0xffffffff, PAGE_SIZE, 0);
249 	error = txp_download_fw(sc);
250 	contigfree(sc->sc_fwbuf, 32768, M_DEVBUF);
251 	sc->sc_fwbuf = NULL;
252 
253 	if (error)
254 		goto fail;
255 
256 	sc->sc_ldata = contigmalloc(sizeof(struct txp_ldata), M_DEVBUF,
257 	    M_WAITOK | M_ZERO, 0, 0xffffffff, PAGE_SIZE, 0);
258 
259 	if (txp_alloc_rings(sc)) {
260 		error = ENXIO;
261 		goto fail;
262 	}
263 
264 	if (txp_command(sc, TXP_CMD_MAX_PKT_SIZE_WRITE, TXP_MAX_PKTLEN, 0, 0,
265 	    NULL, NULL, NULL, 1)) {
266 		error = ENXIO;
267 		goto fail;
268 	}
269 
270 	if (txp_command(sc, TXP_CMD_STATION_ADDRESS_READ, 0, 0, 0,
271 	    &p1, &p2, NULL, 1)) {
272 		error = ENXIO;
273 		goto fail;
274 	}
275 
276 	txp_set_filter(sc);
277 
278 	enaddr[0] = ((uint8_t *)&p1)[1];
279 	enaddr[1] = ((uint8_t *)&p1)[0];
280 	enaddr[2] = ((uint8_t *)&p2)[3];
281 	enaddr[3] = ((uint8_t *)&p2)[2];
282 	enaddr[4] = ((uint8_t *)&p2)[1];
283 	enaddr[5] = ((uint8_t *)&p2)[0];
284 
285 	ifmedia_init(&sc->sc_ifmedia, 0, txp_ifmedia_upd, txp_ifmedia_sts);
286 	ifmedia_add(&sc->sc_ifmedia, IFM_ETHER|IFM_10_T, 0, NULL);
287 	ifmedia_add(&sc->sc_ifmedia, IFM_ETHER|IFM_10_T|IFM_HDX, 0, NULL);
288 	ifmedia_add(&sc->sc_ifmedia, IFM_ETHER|IFM_10_T|IFM_FDX, 0, NULL);
289 	ifmedia_add(&sc->sc_ifmedia, IFM_ETHER|IFM_100_TX, 0, NULL);
290 	ifmedia_add(&sc->sc_ifmedia, IFM_ETHER|IFM_100_TX|IFM_HDX, 0, NULL);
291 	ifmedia_add(&sc->sc_ifmedia, IFM_ETHER|IFM_100_TX|IFM_FDX, 0, NULL);
292 	ifmedia_add(&sc->sc_ifmedia, IFM_ETHER|IFM_AUTO, 0, NULL);
293 
294 	sc->sc_xcvr = TXP_XCVR_AUTO;
295 	txp_command(sc, TXP_CMD_XCVR_SELECT, TXP_XCVR_AUTO, 0, 0,
296 	    NULL, NULL, NULL, 0);
297 	ifmedia_set(&sc->sc_ifmedia, IFM_ETHER|IFM_AUTO);
298 
299 	ifp->if_softc = sc;
300 	ifp->if_mtu = ETHERMTU;
301 	ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
302 	ifp->if_ioctl = txp_ioctl;
303 	ifp->if_start = txp_start;
304 	ifp->if_watchdog = txp_watchdog;
305 	ifp->if_init = txp_init;
306 	ifp->if_baudrate = 100000000;
307 	ifq_set_maxlen(&ifp->if_snd, TX_ENTRIES);
308 	ifq_set_ready(&ifp->if_snd);
309 	ifp->if_hwassist = 0;
310 	txp_capabilities(sc);
311 
312 	ether_ifattach(ifp, enaddr, NULL);
313 
314 	error = bus_setup_intr(dev, sc->sc_irq, INTR_NETSAFE,
315 			       txp_intr, sc, &sc->sc_intrhand,
316 			       ifp->if_serializer);
317 	if (error) {
318 		device_printf(dev, "couldn't set up irq\n");
319 		ether_ifdetach(ifp);
320 		goto fail;
321 	}
322 
323 	return(0);
324 
325 fail:
326 	txp_release_resources(dev);
327 	return(error);
328 }
329 
330 static int
331 txp_detach(device_t dev)
332 {
333 	struct txp_softc *sc = device_get_softc(dev);
334 	struct ifnet *ifp = &sc->sc_arpcom.ac_if;
335 	int i;
336 
337 	lwkt_serialize_enter(ifp->if_serializer);
338 
339 	txp_stop(sc);
340 	txp_shutdown(dev);
341 	bus_teardown_intr(dev, sc->sc_irq, sc->sc_intrhand);
342 
343 	lwkt_serialize_exit(ifp->if_serializer);
344 
345 	ifmedia_removeall(&sc->sc_ifmedia);
346 	ether_ifdetach(ifp);
347 
348 	for (i = 0; i < RXBUF_ENTRIES; i++)
349 		kfree(sc->sc_rxbufs[i].rb_sd, M_DEVBUF);
350 
351 	txp_release_resources(dev);
352 
353 	return(0);
354 }
355 
356 static void
357 txp_release_resources(device_t dev)
358 {
359 	struct txp_softc *sc;
360 
361 	sc = device_get_softc(dev);
362 
363 	if (sc->sc_irq != NULL)
364 		bus_release_resource(dev, SYS_RES_IRQ, 0, sc->sc_irq);
365 
366 	if (sc->sc_res != NULL)
367 		bus_release_resource(dev, TXP_RES, TXP_RID, sc->sc_res);
368 
369 	if (sc->sc_ldata != NULL)
370 		contigfree(sc->sc_ldata, sizeof(struct txp_ldata), M_DEVBUF);
371 
372 	return;
373 }
374 
375 static int
376 txp_chip_init(struct txp_softc *sc)
377 {
378 	/* disable interrupts */
379 	WRITE_REG(sc, TXP_IER, 0);
380 	WRITE_REG(sc, TXP_IMR,
381 	    TXP_INT_SELF | TXP_INT_PCI_TABORT | TXP_INT_PCI_MABORT |
382 	    TXP_INT_DMA3 | TXP_INT_DMA2 | TXP_INT_DMA1 | TXP_INT_DMA0 |
383 	    TXP_INT_LATCH);
384 
385 	/* ack all interrupts */
386 	WRITE_REG(sc, TXP_ISR, TXP_INT_RESERVED | TXP_INT_LATCH |
387 	    TXP_INT_A2H_7 | TXP_INT_A2H_6 | TXP_INT_A2H_5 | TXP_INT_A2H_4 |
388 	    TXP_INT_SELF | TXP_INT_PCI_TABORT | TXP_INT_PCI_MABORT |
389 	    TXP_INT_DMA3 | TXP_INT_DMA2 | TXP_INT_DMA1 | TXP_INT_DMA0 |
390 	    TXP_INT_A2H_3 | TXP_INT_A2H_2 | TXP_INT_A2H_1 | TXP_INT_A2H_0);
391 
392 	if (txp_reset_adapter(sc))
393 		return (-1);
394 
395 	/* disable interrupts */
396 	WRITE_REG(sc, TXP_IER, 0);
397 	WRITE_REG(sc, TXP_IMR,
398 	    TXP_INT_SELF | TXP_INT_PCI_TABORT | TXP_INT_PCI_MABORT |
399 	    TXP_INT_DMA3 | TXP_INT_DMA2 | TXP_INT_DMA1 | TXP_INT_DMA0 |
400 	    TXP_INT_LATCH);
401 
402 	/* ack all interrupts */
403 	WRITE_REG(sc, TXP_ISR, TXP_INT_RESERVED | TXP_INT_LATCH |
404 	    TXP_INT_A2H_7 | TXP_INT_A2H_6 | TXP_INT_A2H_5 | TXP_INT_A2H_4 |
405 	    TXP_INT_SELF | TXP_INT_PCI_TABORT | TXP_INT_PCI_MABORT |
406 	    TXP_INT_DMA3 | TXP_INT_DMA2 | TXP_INT_DMA1 | TXP_INT_DMA0 |
407 	    TXP_INT_A2H_3 | TXP_INT_A2H_2 | TXP_INT_A2H_1 | TXP_INT_A2H_0);
408 
409 	return (0);
410 }
411 
412 static int
413 txp_reset_adapter(struct txp_softc *sc)
414 {
415 	u_int32_t r;
416 	int i;
417 
418 	WRITE_REG(sc, TXP_SRR, TXP_SRR_ALL);
419 	DELAY(1000);
420 	WRITE_REG(sc, TXP_SRR, 0);
421 
422 	/* Should wait max 6 seconds */
423 	for (i = 0; i < 6000; i++) {
424 		r = READ_REG(sc, TXP_A2H_0);
425 		if (r == STAT_WAITING_FOR_HOST_REQUEST)
426 			break;
427 		DELAY(1000);
428 	}
429 
430 	if (r != STAT_WAITING_FOR_HOST_REQUEST) {
431 		if_printf(&sc->sc_arpcom.ac_if, "reset hung\n");
432 		return (-1);
433 	}
434 
435 	return (0);
436 }
437 
438 static int
439 txp_download_fw(struct txp_softc *sc)
440 {
441 	struct txp_fw_file_header *fileheader;
442 	struct txp_fw_section_header *secthead;
443 	int sect;
444 	u_int32_t r, i, ier, imr;
445 
446 	ier = READ_REG(sc, TXP_IER);
447 	WRITE_REG(sc, TXP_IER, ier | TXP_INT_A2H_0);
448 
449 	imr = READ_REG(sc, TXP_IMR);
450 	WRITE_REG(sc, TXP_IMR, imr | TXP_INT_A2H_0);
451 
452 	for (i = 0; i < 10000; i++) {
453 		r = READ_REG(sc, TXP_A2H_0);
454 		if (r == STAT_WAITING_FOR_HOST_REQUEST)
455 			break;
456 		DELAY(50);
457 	}
458 	if (r != STAT_WAITING_FOR_HOST_REQUEST) {
459 		if_printf(&sc->sc_arpcom.ac_if,
460 			  "not waiting for host request\n");
461 		return (-1);
462 	}
463 
464 	/* Ack the status */
465 	WRITE_REG(sc, TXP_ISR, TXP_INT_A2H_0);
466 
467 	fileheader = (struct txp_fw_file_header *)tc990image;
468 	if (bcmp("TYPHOON", fileheader->magicid, sizeof(fileheader->magicid))) {
469 		if_printf(&sc->sc_arpcom.ac_if, "fw invalid magic\n");
470 		return (-1);
471 	}
472 
473 	/* Tell boot firmware to get ready for image */
474 	WRITE_REG(sc, TXP_H2A_1, fileheader->addr);
475 	WRITE_REG(sc, TXP_H2A_0, TXP_BOOTCMD_RUNTIME_IMAGE);
476 
477 	if (txp_download_fw_wait(sc)) {
478 		if_printf(&sc->sc_arpcom.ac_if, "fw wait failed, initial\n");
479 		return (-1);
480 	}
481 
482 	secthead = (struct txp_fw_section_header *)(((u_int8_t *)tc990image) +
483 	    sizeof(struct txp_fw_file_header));
484 
485 	for (sect = 0; sect < fileheader->nsections; sect++) {
486 		if (txp_download_fw_section(sc, secthead, sect))
487 			return (-1);
488 		secthead = (struct txp_fw_section_header *)
489 		    (((u_int8_t *)secthead) + secthead->nbytes +
490 		    sizeof(*secthead));
491 	}
492 
493 	WRITE_REG(sc, TXP_H2A_0, TXP_BOOTCMD_DOWNLOAD_COMPLETE);
494 
495 	for (i = 0; i < 10000; i++) {
496 		r = READ_REG(sc, TXP_A2H_0);
497 		if (r == STAT_WAITING_FOR_BOOT)
498 			break;
499 		DELAY(50);
500 	}
501 	if (r != STAT_WAITING_FOR_BOOT) {
502 		if_printf(&sc->sc_arpcom.ac_if, "not waiting for boot\n");
503 		return (-1);
504 	}
505 
506 	WRITE_REG(sc, TXP_IER, ier);
507 	WRITE_REG(sc, TXP_IMR, imr);
508 
509 	return (0);
510 }
511 
512 static int
513 txp_download_fw_wait(struct txp_softc *sc)
514 {
515 	u_int32_t i, r;
516 
517 	for (i = 0; i < 10000; i++) {
518 		r = READ_REG(sc, TXP_ISR);
519 		if (r & TXP_INT_A2H_0)
520 			break;
521 		DELAY(50);
522 	}
523 
524 	if (!(r & TXP_INT_A2H_0)) {
525 		if_printf(&sc->sc_arpcom.ac_if, "fw wait failed comm0\n");
526 		return (-1);
527 	}
528 
529 	WRITE_REG(sc, TXP_ISR, TXP_INT_A2H_0);
530 
531 	r = READ_REG(sc, TXP_A2H_0);
532 	if (r != STAT_WAITING_FOR_SEGMENT) {
533 		if_printf(&sc->sc_arpcom.ac_if, "fw not waiting for segment\n");
534 		return (-1);
535 	}
536 	return (0);
537 }
538 
539 static int
540 txp_download_fw_section(struct txp_softc *sc,
541 			struct txp_fw_section_header *sect, int sectnum)
542 {
543 	vm_offset_t dma;
544 	int rseg, err = 0;
545 	struct mbuf m;
546 	u_int16_t csum;
547 
548 	/* Skip zero length sections */
549 	if (sect->nbytes == 0)
550 		return (0);
551 
552 	/* Make sure we aren't past the end of the image */
553 	rseg = ((u_int8_t *)sect) - ((u_int8_t *)tc990image);
554 	if (rseg >= sizeof(tc990image)) {
555 		if_printf(&sc->sc_arpcom.ac_if, "fw invalid section address, "
556 		    "section %d\n", sectnum);
557 		return (-1);
558 	}
559 
560 	/* Make sure this section doesn't go past the end */
561 	rseg += sect->nbytes;
562 	if (rseg >= sizeof(tc990image)) {
563 		if_printf(&sc->sc_arpcom.ac_if, "fw truncated section %d\n",
564 		    sectnum);
565 		return (-1);
566 	}
567 
568 	bcopy(((u_int8_t *)sect) + sizeof(*sect), sc->sc_fwbuf, sect->nbytes);
569 	dma = vtophys(sc->sc_fwbuf);
570 
571 	/*
572 	 * dummy up mbuf and verify section checksum
573 	 */
574 	m.m_type = MT_DATA;
575 	m.m_next = m.m_nextpkt = NULL;
576 	m.m_len = sect->nbytes;
577 	m.m_data = sc->sc_fwbuf;
578 	m.m_flags = 0;
579 	csum = in_cksum(&m, sect->nbytes);
580 	if (csum != sect->cksum) {
581 		if_printf(&sc->sc_arpcom.ac_if, "fw section %d, bad "
582 		    "cksum (expected 0x%x got 0x%x)\n",
583 		    sectnum, sect->cksum, csum);
584 		err = -1;
585 		goto bail;
586 	}
587 
588 	WRITE_REG(sc, TXP_H2A_1, sect->nbytes);
589 	WRITE_REG(sc, TXP_H2A_2, sect->cksum);
590 	WRITE_REG(sc, TXP_H2A_3, sect->addr);
591 	WRITE_REG(sc, TXP_H2A_4, 0);
592 	WRITE_REG(sc, TXP_H2A_5, dma & 0xffffffff);
593 	WRITE_REG(sc, TXP_H2A_0, TXP_BOOTCMD_SEGMENT_AVAILABLE);
594 
595 	if (txp_download_fw_wait(sc)) {
596 		if_printf(&sc->sc_arpcom.ac_if, "fw wait failed, "
597 		    "section %d\n", sectnum);
598 		err = -1;
599 	}
600 
601 bail:
602 	return (err);
603 }
604 
605 static void
606 txp_intr(void *vsc)
607 {
608 	struct txp_softc *sc = vsc;
609 	struct txp_hostvar *hv = sc->sc_hostvar;
610 	u_int32_t isr;
611 
612 	/* mask all interrupts */
613 	WRITE_REG(sc, TXP_IMR, TXP_INT_RESERVED | TXP_INT_SELF |
614 	    TXP_INT_A2H_7 | TXP_INT_A2H_6 | TXP_INT_A2H_5 | TXP_INT_A2H_4 |
615 	    TXP_INT_A2H_2 | TXP_INT_A2H_1 | TXP_INT_A2H_0 |
616 	    TXP_INT_DMA3 | TXP_INT_DMA2 | TXP_INT_DMA1 | TXP_INT_DMA0 |
617 	    TXP_INT_PCI_TABORT | TXP_INT_PCI_MABORT |  TXP_INT_LATCH);
618 
619 	isr = READ_REG(sc, TXP_ISR);
620 	while (isr) {
621 		WRITE_REG(sc, TXP_ISR, isr);
622 
623 		if ((*sc->sc_rxhir.r_roff) != (*sc->sc_rxhir.r_woff))
624 			txp_rx_reclaim(sc, &sc->sc_rxhir);
625 		if ((*sc->sc_rxlor.r_roff) != (*sc->sc_rxlor.r_woff))
626 			txp_rx_reclaim(sc, &sc->sc_rxlor);
627 
628 		if (hv->hv_rx_buf_write_idx == hv->hv_rx_buf_read_idx)
629 			txp_rxbuf_reclaim(sc);
630 
631 		if (sc->sc_txhir.r_cnt && (sc->sc_txhir.r_cons !=
632 		    TXP_OFFSET2IDX(*(sc->sc_txhir.r_off))))
633 			txp_tx_reclaim(sc, &sc->sc_txhir);
634 
635 		if (sc->sc_txlor.r_cnt && (sc->sc_txlor.r_cons !=
636 		    TXP_OFFSET2IDX(*(sc->sc_txlor.r_off))))
637 			txp_tx_reclaim(sc, &sc->sc_txlor);
638 
639 		isr = READ_REG(sc, TXP_ISR);
640 	}
641 
642 	/* unmask all interrupts */
643 	WRITE_REG(sc, TXP_IMR, TXP_INT_A2H_3);
644 
645 	txp_start(&sc->sc_arpcom.ac_if);
646 
647 	return;
648 }
649 
650 static void
651 txp_rx_reclaim(struct txp_softc *sc, struct txp_rx_ring *r)
652 {
653 	struct ifnet *ifp = &sc->sc_arpcom.ac_if;
654 	struct txp_rx_desc *rxd;
655 	struct mbuf *m;
656 	struct txp_swdesc *sd = NULL;
657 	u_int32_t roff, woff;
658 
659 	roff = *r->r_roff;
660 	woff = *r->r_woff;
661 	rxd = r->r_desc + (roff / sizeof(struct txp_rx_desc));
662 
663 	while (roff != woff) {
664 
665 		if (rxd->rx_flags & RX_FLAGS_ERROR) {
666 			if_printf(ifp, "error 0x%x\n", rxd->rx_stat);
667 			ifp->if_ierrors++;
668 			goto next;
669 		}
670 
671 		/* retrieve stashed pointer */
672 		sd = rxd->rx_sd;
673 
674 		m = sd->sd_mbuf;
675 		sd->sd_mbuf = NULL;
676 
677 		m->m_pkthdr.len = m->m_len = rxd->rx_len;
678 
679 #ifdef __STRICT_ALIGNMENT
680 		{
681 			/*
682 			 * XXX Nice chip, except it won't accept "off by 2"
683 			 * buffers, so we're force to copy.  Supposedly
684 			 * this will be fixed in a newer firmware rev
685 			 * and this will be temporary.
686 			 */
687 			struct mbuf *mnew;
688 
689 			MGETHDR(mnew, MB_DONTWAIT, MT_DATA);
690 			if (mnew == NULL) {
691 				m_freem(m);
692 				goto next;
693 			}
694 			if (m->m_len > (MHLEN - 2)) {
695 				MCLGET(mnew, MB_DONTWAIT);
696 				if (!(mnew->m_flags & M_EXT)) {
697 					m_freem(mnew);
698 					m_freem(m);
699 					goto next;
700 				}
701 			}
702 			mnew->m_pkthdr.rcvif = ifp;
703 			m_adj(mnew, 2);
704 			mnew->m_pkthdr.len = mnew->m_len = m->m_len;
705 			m_copydata(m, 0, m->m_pkthdr.len, mtod(mnew, caddr_t));
706 			m_freem(m);
707 			m = mnew;
708 		}
709 #endif
710 
711 		if (rxd->rx_stat & RX_STAT_IPCKSUMBAD)
712 			m->m_pkthdr.csum_flags |= CSUM_IP_CHECKED;
713 		else if (rxd->rx_stat & RX_STAT_IPCKSUMGOOD)
714 		 	m->m_pkthdr.csum_flags |=
715 			    CSUM_IP_CHECKED|CSUM_IP_VALID;
716 
717 		if ((rxd->rx_stat & RX_STAT_TCPCKSUMGOOD) ||
718 		    (rxd->rx_stat & RX_STAT_UDPCKSUMGOOD)) {
719 			m->m_pkthdr.csum_flags |=
720 			    CSUM_DATA_VALID|CSUM_PSEUDO_HDR|
721 			    CSUM_FRAG_NOT_CHECKED;
722 			m->m_pkthdr.csum_data = 0xffff;
723 		}
724 
725 		lwkt_serialize_enter(ifp->if_serializer);
726 		if (rxd->rx_stat & RX_STAT_VLAN)
727 			VLAN_INPUT_TAG(m, htons(rxd->rx_vlan >> 16));
728 		else
729 			ifp->if_input(ifp, m);
730 		lwkt_serialize_exit(ifp->if_serializer);
731 
732 next:
733 
734 		roff += sizeof(struct txp_rx_desc);
735 		if (roff == (RX_ENTRIES * sizeof(struct txp_rx_desc))) {
736 			roff = 0;
737 			rxd = r->r_desc;
738 		} else
739 			rxd++;
740 		woff = *r->r_woff;
741 	}
742 
743 	*r->r_roff = woff;
744 
745 	return;
746 }
747 
748 static void
749 txp_rxbuf_reclaim(struct txp_softc *sc)
750 {
751 	struct ifnet *ifp = &sc->sc_arpcom.ac_if;
752 	struct txp_hostvar *hv = sc->sc_hostvar;
753 	struct txp_rxbuf_desc *rbd;
754 	struct txp_swdesc *sd;
755 	u_int32_t i;
756 
757 	if (!(ifp->if_flags & IFF_RUNNING))
758 		return;
759 
760 	i = sc->sc_rxbufprod;
761 	rbd = sc->sc_rxbufs + i;
762 
763 	while (1) {
764 		sd = rbd->rb_sd;
765 		if (sd->sd_mbuf != NULL)
766 			break;
767 
768 		MGETHDR(sd->sd_mbuf, MB_DONTWAIT, MT_DATA);
769 		if (sd->sd_mbuf == NULL)
770 			goto err_sd;
771 
772 		MCLGET(sd->sd_mbuf, MB_DONTWAIT);
773 		if ((sd->sd_mbuf->m_flags & M_EXT) == 0)
774 			goto err_mbuf;
775 		sd->sd_mbuf->m_pkthdr.rcvif = ifp;
776 		sd->sd_mbuf->m_pkthdr.len = sd->sd_mbuf->m_len = MCLBYTES;
777 
778 		rbd->rb_paddrlo = vtophys(mtod(sd->sd_mbuf, vm_offset_t))
779 		    & 0xffffffff;
780 		rbd->rb_paddrhi = 0;
781 
782 		hv->hv_rx_buf_write_idx = TXP_IDX2OFFSET(i);
783 
784 		if (++i == RXBUF_ENTRIES) {
785 			i = 0;
786 			rbd = sc->sc_rxbufs;
787 		} else
788 			rbd++;
789 	}
790 
791 	sc->sc_rxbufprod = i;
792 
793 	return;
794 
795 err_mbuf:
796 	m_freem(sd->sd_mbuf);
797 err_sd:
798 	kfree(sd, M_DEVBUF);
799 }
800 
801 /*
802  * Reclaim mbufs and entries from a transmit ring.
803  */
804 static void
805 txp_tx_reclaim(struct txp_softc *sc, struct txp_tx_ring *r)
806 {
807 	struct ifnet *ifp = &sc->sc_arpcom.ac_if;
808 	u_int32_t idx = TXP_OFFSET2IDX(*(r->r_off));
809 	u_int32_t cons = r->r_cons, cnt = r->r_cnt;
810 	struct txp_tx_desc *txd = r->r_desc + cons;
811 	struct txp_swdesc *sd = sc->sc_txd + cons;
812 	struct mbuf *m;
813 
814 	while (cons != idx) {
815 		if (cnt == 0)
816 			break;
817 
818 		if ((txd->tx_flags & TX_FLAGS_TYPE_M) ==
819 		    TX_FLAGS_TYPE_DATA) {
820 			m = sd->sd_mbuf;
821 			if (m != NULL) {
822 				m_freem(m);
823 				txd->tx_addrlo = 0;
824 				txd->tx_addrhi = 0;
825 				ifp->if_opackets++;
826 			}
827 		}
828 		ifp->if_flags &= ~IFF_OACTIVE;
829 
830 		if (++cons == TX_ENTRIES) {
831 			txd = r->r_desc;
832 			cons = 0;
833 			sd = sc->sc_txd;
834 		} else {
835 			txd++;
836 			sd++;
837 		}
838 
839 		cnt--;
840 	}
841 
842 	r->r_cons = cons;
843 	r->r_cnt = cnt;
844 	if (cnt == 0)
845 		ifp->if_timer = 0;
846 }
847 
848 static int
849 txp_shutdown(device_t dev)
850 {
851 	struct txp_softc *sc;
852 	struct ifnet *ifp;
853 
854 	sc = device_get_softc(dev);
855 	ifp = &sc->sc_arpcom.ac_if;
856 	lwkt_serialize_enter(ifp->if_serializer);
857 
858 	/* mask all interrupts */
859 	WRITE_REG(sc, TXP_IMR,
860 	    TXP_INT_SELF | TXP_INT_PCI_TABORT | TXP_INT_PCI_MABORT |
861 	    TXP_INT_DMA3 | TXP_INT_DMA2 | TXP_INT_DMA1 | TXP_INT_DMA0 |
862 	    TXP_INT_LATCH);
863 
864 	txp_command(sc, TXP_CMD_TX_DISABLE, 0, 0, 0, NULL, NULL, NULL, 0);
865 	txp_command(sc, TXP_CMD_RX_DISABLE, 0, 0, 0, NULL, NULL, NULL, 0);
866 	txp_command(sc, TXP_CMD_HALT, 0, 0, 0, NULL, NULL, NULL, 0);
867 
868 	lwkt_serialize_exit(ifp->if_serializer);
869 	return(0);
870 }
871 
872 static int
873 txp_alloc_rings(struct txp_softc *sc)
874 {
875 	struct txp_boot_record *boot;
876 	struct txp_ldata *ld;
877 	u_int32_t r;
878 	int i;
879 
880 	ld = sc->sc_ldata;
881 	boot = &ld->txp_boot;
882 
883 	/* boot record */
884 	sc->sc_boot = boot;
885 
886 	/* host variables */
887 	bzero(&ld->txp_hostvar, sizeof(struct txp_hostvar));
888 	boot->br_hostvar_lo = vtophys(&ld->txp_hostvar);
889 	boot->br_hostvar_hi = 0;
890 	sc->sc_hostvar = (struct txp_hostvar *)&ld->txp_hostvar;
891 
892 	/* hi priority tx ring */
893 	boot->br_txhipri_lo = vtophys(&ld->txp_txhiring);
894 	boot->br_txhipri_hi = 0;
895 	boot->br_txhipri_siz = TX_ENTRIES * sizeof(struct txp_tx_desc);
896 	sc->sc_txhir.r_reg = TXP_H2A_1;
897 	sc->sc_txhir.r_desc = (struct txp_tx_desc *)&ld->txp_txhiring;
898 	sc->sc_txhir.r_cons = sc->sc_txhir.r_prod = sc->sc_txhir.r_cnt = 0;
899 	sc->sc_txhir.r_off = &sc->sc_hostvar->hv_tx_hi_desc_read_idx;
900 
901 	/* lo priority tx ring */
902 	boot->br_txlopri_lo = vtophys(&ld->txp_txloring);
903 	boot->br_txlopri_hi = 0;
904 	boot->br_txlopri_siz = TX_ENTRIES * sizeof(struct txp_tx_desc);
905 	sc->sc_txlor.r_reg = TXP_H2A_3;
906 	sc->sc_txlor.r_desc = (struct txp_tx_desc *)&ld->txp_txloring;
907 	sc->sc_txlor.r_cons = sc->sc_txlor.r_prod = sc->sc_txlor.r_cnt = 0;
908 	sc->sc_txlor.r_off = &sc->sc_hostvar->hv_tx_lo_desc_read_idx;
909 
910 	/* high priority rx ring */
911 	boot->br_rxhipri_lo = vtophys(&ld->txp_rxhiring);
912 	boot->br_rxhipri_hi = 0;
913 	boot->br_rxhipri_siz = RX_ENTRIES * sizeof(struct txp_rx_desc);
914 	sc->sc_rxhir.r_desc = (struct txp_rx_desc *)&ld->txp_rxhiring;
915 	sc->sc_rxhir.r_roff = &sc->sc_hostvar->hv_rx_hi_read_idx;
916 	sc->sc_rxhir.r_woff = &sc->sc_hostvar->hv_rx_hi_write_idx;
917 
918 	/* low priority rx ring */
919 	boot->br_rxlopri_lo = vtophys(&ld->txp_rxloring);
920 	boot->br_rxlopri_hi = 0;
921 	boot->br_rxlopri_siz = RX_ENTRIES * sizeof(struct txp_rx_desc);
922 	sc->sc_rxlor.r_desc = (struct txp_rx_desc *)&ld->txp_rxloring;
923 	sc->sc_rxlor.r_roff = &sc->sc_hostvar->hv_rx_lo_read_idx;
924 	sc->sc_rxlor.r_woff = &sc->sc_hostvar->hv_rx_lo_write_idx;
925 
926 	/* command ring */
927 	bzero(&ld->txp_cmdring, sizeof(struct txp_cmd_desc) * CMD_ENTRIES);
928 	boot->br_cmd_lo = vtophys(&ld->txp_cmdring);
929 	boot->br_cmd_hi = 0;
930 	boot->br_cmd_siz = CMD_ENTRIES * sizeof(struct txp_cmd_desc);
931 	sc->sc_cmdring.base = (struct txp_cmd_desc *)&ld->txp_cmdring;
932 	sc->sc_cmdring.size = CMD_ENTRIES * sizeof(struct txp_cmd_desc);
933 	sc->sc_cmdring.lastwrite = 0;
934 
935 	/* response ring */
936 	bzero(&ld->txp_rspring, sizeof(struct txp_rsp_desc) * RSP_ENTRIES);
937 	boot->br_resp_lo = vtophys(&ld->txp_rspring);
938 	boot->br_resp_hi = 0;
939 	boot->br_resp_siz = CMD_ENTRIES * sizeof(struct txp_rsp_desc);
940 	sc->sc_rspring.base = (struct txp_rsp_desc *)&ld->txp_rspring;
941 	sc->sc_rspring.size = RSP_ENTRIES * sizeof(struct txp_rsp_desc);
942 	sc->sc_rspring.lastwrite = 0;
943 
944 	/* receive buffer ring */
945 	boot->br_rxbuf_lo = vtophys(&ld->txp_rxbufs);
946 	boot->br_rxbuf_hi = 0;
947 	boot->br_rxbuf_siz = RXBUF_ENTRIES * sizeof(struct txp_rxbuf_desc);
948 	sc->sc_rxbufs = (struct txp_rxbuf_desc *)&ld->txp_rxbufs;
949 
950 	for (i = 0; i < RXBUF_ENTRIES; i++) {
951 		struct txp_swdesc *sd;
952 		if (sc->sc_rxbufs[i].rb_sd != NULL)
953 			continue;
954 		sc->sc_rxbufs[i].rb_sd = kmalloc(sizeof(struct txp_swdesc),
955 		    M_DEVBUF, M_WAITOK);
956 		sd = sc->sc_rxbufs[i].rb_sd;
957 		sd->sd_mbuf = NULL;
958 	}
959 	sc->sc_rxbufprod = 0;
960 
961 	/* zero dma */
962 	bzero(&ld->txp_zero, sizeof(u_int32_t));
963 	boot->br_zero_lo = vtophys(&ld->txp_zero);
964 	boot->br_zero_hi = 0;
965 
966 	/* See if it's waiting for boot, and try to boot it */
967 	for (i = 0; i < 10000; i++) {
968 		r = READ_REG(sc, TXP_A2H_0);
969 		if (r == STAT_WAITING_FOR_BOOT)
970 			break;
971 		DELAY(50);
972 	}
973 
974 	if (r != STAT_WAITING_FOR_BOOT) {
975 		if_printf(&sc->sc_arpcom.ac_if, "not waiting for boot\n");
976 		return(ENXIO);
977 	}
978 
979 	WRITE_REG(sc, TXP_H2A_2, 0);
980 	WRITE_REG(sc, TXP_H2A_1, vtophys(sc->sc_boot));
981 	WRITE_REG(sc, TXP_H2A_0, TXP_BOOTCMD_REGISTER_BOOT_RECORD);
982 
983 	/* See if it booted */
984 	for (i = 0; i < 10000; i++) {
985 		r = READ_REG(sc, TXP_A2H_0);
986 		if (r == STAT_RUNNING)
987 			break;
988 		DELAY(50);
989 	}
990 	if (r != STAT_RUNNING) {
991 		if_printf(&sc->sc_arpcom.ac_if, "fw not running\n");
992 		return(ENXIO);
993 	}
994 
995 	/* Clear TX and CMD ring write registers */
996 	WRITE_REG(sc, TXP_H2A_1, TXP_BOOTCMD_NULL);
997 	WRITE_REG(sc, TXP_H2A_2, TXP_BOOTCMD_NULL);
998 	WRITE_REG(sc, TXP_H2A_3, TXP_BOOTCMD_NULL);
999 	WRITE_REG(sc, TXP_H2A_0, TXP_BOOTCMD_NULL);
1000 
1001 	return (0);
1002 }
1003 
1004 static int
1005 txp_ioctl(struct ifnet *ifp, u_long command, caddr_t data, struct ucred *cr)
1006 {
1007 	struct txp_softc *sc = ifp->if_softc;
1008 	struct ifreq *ifr = (struct ifreq *)data;
1009 	int error = 0;
1010 
1011 	switch(command) {
1012 	case SIOCSIFFLAGS:
1013 		if (ifp->if_flags & IFF_UP) {
1014 			txp_init(sc);
1015 		} else {
1016 			if (ifp->if_flags & IFF_RUNNING)
1017 				txp_stop(sc);
1018 		}
1019 		break;
1020 	case SIOCADDMULTI:
1021 	case SIOCDELMULTI:
1022 		/*
1023 		 * Multicast list has changed; set the hardware
1024 		 * filter accordingly.
1025 		 */
1026 		txp_set_filter(sc);
1027 		error = 0;
1028 		break;
1029 	case SIOCGIFMEDIA:
1030 	case SIOCSIFMEDIA:
1031 		error = ifmedia_ioctl(ifp, ifr, &sc->sc_ifmedia, command);
1032 		break;
1033 	default:
1034 		error = ether_ioctl(ifp, command, data);
1035 		break;
1036 	}
1037 	return(error);
1038 }
1039 
1040 static int
1041 txp_rxring_fill(struct txp_softc *sc)
1042 {
1043 	int i;
1044 	struct ifnet *ifp;
1045 	struct txp_swdesc *sd;
1046 
1047 	ifp = &sc->sc_arpcom.ac_if;
1048 
1049 	for (i = 0; i < RXBUF_ENTRIES; i++) {
1050 		sd = sc->sc_rxbufs[i].rb_sd;
1051 		MGETHDR(sd->sd_mbuf, MB_DONTWAIT, MT_DATA);
1052 		if (sd->sd_mbuf == NULL)
1053 			return(ENOBUFS);
1054 
1055 		MCLGET(sd->sd_mbuf, MB_DONTWAIT);
1056 		if ((sd->sd_mbuf->m_flags & M_EXT) == 0) {
1057 			m_freem(sd->sd_mbuf);
1058 			return(ENOBUFS);
1059 		}
1060 		sd->sd_mbuf->m_pkthdr.len = sd->sd_mbuf->m_len = MCLBYTES;
1061 		sd->sd_mbuf->m_pkthdr.rcvif = ifp;
1062 
1063 		sc->sc_rxbufs[i].rb_paddrlo =
1064 		    vtophys(mtod(sd->sd_mbuf, vm_offset_t));
1065 		sc->sc_rxbufs[i].rb_paddrhi = 0;
1066 	}
1067 
1068 	sc->sc_hostvar->hv_rx_buf_write_idx = (RXBUF_ENTRIES - 1) *
1069 	    sizeof(struct txp_rxbuf_desc);
1070 
1071 	return(0);
1072 }
1073 
1074 static void
1075 txp_rxring_empty(struct txp_softc *sc)
1076 {
1077 	int i;
1078 	struct txp_swdesc *sd;
1079 
1080 	if (sc->sc_rxbufs == NULL)
1081 		return;
1082 
1083 	for (i = 0; i < RXBUF_ENTRIES; i++) {
1084 		if (&sc->sc_rxbufs[i] == NULL)
1085 			continue;
1086 		sd = sc->sc_rxbufs[i].rb_sd;
1087 		if (sd == NULL)
1088 			continue;
1089 		if (sd->sd_mbuf != NULL) {
1090 			m_freem(sd->sd_mbuf);
1091 			sd->sd_mbuf = NULL;
1092 		}
1093 	}
1094 
1095 	return;
1096 }
1097 
1098 static void
1099 txp_init(void *xsc)
1100 {
1101 	struct txp_softc *sc;
1102 	struct ifnet *ifp;
1103 	u_int16_t p1;
1104 	u_int32_t p2;
1105 
1106 	sc = xsc;
1107 	ifp = &sc->sc_arpcom.ac_if;
1108 
1109 	if (ifp->if_flags & IFF_RUNNING)
1110 		return;
1111 
1112 	txp_stop(sc);
1113 
1114 	txp_command(sc, TXP_CMD_MAX_PKT_SIZE_WRITE, TXP_MAX_PKTLEN, 0, 0,
1115 	    NULL, NULL, NULL, 1);
1116 
1117 	/* Set station address. */
1118 	((u_int8_t *)&p1)[1] = sc->sc_arpcom.ac_enaddr[0];
1119 	((u_int8_t *)&p1)[0] = sc->sc_arpcom.ac_enaddr[1];
1120 	((u_int8_t *)&p2)[3] = sc->sc_arpcom.ac_enaddr[2];
1121 	((u_int8_t *)&p2)[2] = sc->sc_arpcom.ac_enaddr[3];
1122 	((u_int8_t *)&p2)[1] = sc->sc_arpcom.ac_enaddr[4];
1123 	((u_int8_t *)&p2)[0] = sc->sc_arpcom.ac_enaddr[5];
1124 	txp_command(sc, TXP_CMD_STATION_ADDRESS_WRITE, p1, p2, 0,
1125 	    NULL, NULL, NULL, 1);
1126 
1127 	txp_set_filter(sc);
1128 
1129 	txp_rxring_fill(sc);
1130 
1131 	txp_command(sc, TXP_CMD_TX_ENABLE, 0, 0, 0, NULL, NULL, NULL, 1);
1132 	txp_command(sc, TXP_CMD_RX_ENABLE, 0, 0, 0, NULL, NULL, NULL, 1);
1133 
1134 	WRITE_REG(sc, TXP_IER, TXP_INT_RESERVED | TXP_INT_SELF |
1135 	    TXP_INT_A2H_7 | TXP_INT_A2H_6 | TXP_INT_A2H_5 | TXP_INT_A2H_4 |
1136 	    TXP_INT_A2H_2 | TXP_INT_A2H_1 | TXP_INT_A2H_0 |
1137 	    TXP_INT_DMA3 | TXP_INT_DMA2 | TXP_INT_DMA1 | TXP_INT_DMA0 |
1138 	    TXP_INT_PCI_TABORT | TXP_INT_PCI_MABORT |  TXP_INT_LATCH);
1139 	WRITE_REG(sc, TXP_IMR, TXP_INT_A2H_3);
1140 
1141 	ifp->if_flags |= IFF_RUNNING;
1142 	ifp->if_flags &= ~IFF_OACTIVE;
1143 	ifp->if_timer = 0;
1144 
1145 	callout_reset(&sc->txp_stat_timer, hz, txp_tick, sc);
1146 }
1147 
1148 static void
1149 txp_tick(void *vsc)
1150 {
1151 	struct txp_softc *sc = vsc;
1152 	struct ifnet *ifp = &sc->sc_arpcom.ac_if;
1153 	struct txp_rsp_desc *rsp = NULL;
1154 	struct txp_ext_desc *ext;
1155 
1156 	lwkt_serialize_enter(ifp->if_serializer);
1157 	txp_rxbuf_reclaim(sc);
1158 
1159 	if (txp_command2(sc, TXP_CMD_READ_STATISTICS, 0, 0, 0, NULL, 0,
1160 	    &rsp, 1))
1161 		goto out;
1162 	if (rsp->rsp_numdesc != 6)
1163 		goto out;
1164 	if (txp_command(sc, TXP_CMD_CLEAR_STATISTICS, 0, 0, 0,
1165 	    NULL, NULL, NULL, 1))
1166 		goto out;
1167 	ext = (struct txp_ext_desc *)(rsp + 1);
1168 
1169 	ifp->if_ierrors += ext[3].ext_2 + ext[3].ext_3 + ext[3].ext_4 +
1170 	    ext[4].ext_1 + ext[4].ext_4;
1171 	ifp->if_oerrors += ext[0].ext_1 + ext[1].ext_1 + ext[1].ext_4 +
1172 	    ext[2].ext_1;
1173 	ifp->if_collisions += ext[0].ext_2 + ext[0].ext_3 + ext[1].ext_2 +
1174 	    ext[1].ext_3;
1175 	ifp->if_opackets += rsp->rsp_par2;
1176 	ifp->if_ipackets += ext[2].ext_3;
1177 
1178 out:
1179 	if (rsp != NULL)
1180 		kfree(rsp, M_DEVBUF);
1181 
1182 	callout_reset(&sc->txp_stat_timer, hz, txp_tick, sc);
1183 	lwkt_serialize_exit(ifp->if_serializer);
1184 }
1185 
1186 static void
1187 txp_start(struct ifnet *ifp)
1188 {
1189 	struct txp_softc *sc = ifp->if_softc;
1190 	struct txp_tx_ring *r = &sc->sc_txhir;
1191 	struct txp_tx_desc *txd;
1192 	struct txp_frag_desc *fxd;
1193 	struct mbuf *m, *m0;
1194 	struct txp_swdesc *sd;
1195 	u_int32_t firstprod, firstcnt, prod, cnt;
1196 
1197 	if ((ifp->if_flags & (IFF_RUNNING | IFF_OACTIVE)) != IFF_RUNNING)
1198 		return;
1199 
1200 	prod = r->r_prod;
1201 	cnt = r->r_cnt;
1202 
1203 	while (1) {
1204 		m = ifq_poll(&ifp->if_snd);
1205 		if (m == NULL)
1206 			break;
1207 
1208 		firstprod = prod;
1209 		firstcnt = cnt;
1210 
1211 		sd = sc->sc_txd + prod;
1212 		sd->sd_mbuf = m;
1213 
1214 		if ((TX_ENTRIES - cnt) < 4)
1215 			goto oactive;
1216 
1217 		txd = r->r_desc + prod;
1218 
1219 		txd->tx_flags = TX_FLAGS_TYPE_DATA;
1220 		txd->tx_numdesc = 0;
1221 		txd->tx_addrlo = 0;
1222 		txd->tx_addrhi = 0;
1223 		txd->tx_totlen = 0;
1224 		txd->tx_pflags = 0;
1225 
1226 		if (++prod == TX_ENTRIES)
1227 			prod = 0;
1228 
1229 		if (++cnt >= (TX_ENTRIES - 4))
1230 			goto oactive;
1231 
1232 		if (m->m_flags & M_VLANTAG) {
1233 			txd->tx_pflags = TX_PFLAGS_VLAN |
1234 			    (htons(m->m_pkthdr.ether_vlantag) <<
1235 			     TX_PFLAGS_VLANTAG_S);
1236 		}
1237 
1238 		if (m->m_pkthdr.csum_flags & CSUM_IP)
1239 			txd->tx_pflags |= TX_PFLAGS_IPCKSUM;
1240 
1241 #if 0
1242 		if (m->m_pkthdr.csum_flags & CSUM_TCP)
1243 			txd->tx_pflags |= TX_PFLAGS_TCPCKSUM;
1244 		if (m->m_pkthdr.csum_flags & CSUM_UDP)
1245 			txd->tx_pflags |= TX_PFLAGS_UDPCKSUM;
1246 #endif
1247 
1248 		fxd = (struct txp_frag_desc *)(r->r_desc + prod);
1249 		for (m0 = m; m0 != NULL; m0 = m0->m_next) {
1250 			if (m0->m_len == 0)
1251 				continue;
1252 			if (++cnt >= (TX_ENTRIES - 4))
1253 				goto oactive;
1254 
1255 			txd->tx_numdesc++;
1256 
1257 			fxd->frag_flags = FRAG_FLAGS_TYPE_FRAG;
1258 			fxd->frag_rsvd1 = 0;
1259 			fxd->frag_len = m0->m_len;
1260 			fxd->frag_addrlo = vtophys(mtod(m0, vm_offset_t));
1261 			fxd->frag_addrhi = 0;
1262 			fxd->frag_rsvd2 = 0;
1263 
1264 			if (++prod == TX_ENTRIES) {
1265 				fxd = (struct txp_frag_desc *)r->r_desc;
1266 				prod = 0;
1267 			} else
1268 				fxd++;
1269 
1270 		}
1271 
1272 		ifp->if_timer = 5;
1273 
1274 		ifq_dequeue(&ifp->if_snd, m);
1275 		ETHER_BPF_MTAP(ifp, m);
1276 		WRITE_REG(sc, r->r_reg, TXP_IDX2OFFSET(prod));
1277 	}
1278 
1279 	r->r_prod = prod;
1280 	r->r_cnt = cnt;
1281 	return;
1282 
1283 oactive:
1284 	ifp->if_flags |= IFF_OACTIVE;
1285 	r->r_prod = firstprod;
1286 	r->r_cnt = firstcnt;
1287 	return;
1288 }
1289 
1290 /*
1291  * Handle simple commands sent to the typhoon
1292  */
1293 static int
1294 txp_command(struct txp_softc *sc, u_int16_t id, u_int16_t in1, u_int32_t in2,
1295 	    u_int32_t in3, u_int16_t *out1, u_int32_t *out2, u_int32_t *out3,
1296 	    int wait)
1297 {
1298 	struct txp_rsp_desc *rsp = NULL;
1299 
1300 	if (txp_command2(sc, id, in1, in2, in3, NULL, 0, &rsp, wait))
1301 		return (-1);
1302 
1303 	if (!wait)
1304 		return (0);
1305 
1306 	if (out1 != NULL)
1307 		*out1 = rsp->rsp_par1;
1308 	if (out2 != NULL)
1309 		*out2 = rsp->rsp_par2;
1310 	if (out3 != NULL)
1311 		*out3 = rsp->rsp_par3;
1312 	kfree(rsp, M_DEVBUF);
1313 	return (0);
1314 }
1315 
1316 static int
1317 txp_command2(struct txp_softc *sc, u_int16_t id, u_int16_t in1, u_int32_t in2,
1318 	     u_int32_t in3, struct txp_ext_desc *in_extp, u_int8_t in_extn,
1319 	     struct txp_rsp_desc **rspp, int wait)
1320 {
1321 	struct txp_hostvar *hv = sc->sc_hostvar;
1322 	struct txp_cmd_desc *cmd;
1323 	struct txp_ext_desc *ext;
1324 	u_int32_t idx, i;
1325 	u_int16_t seq;
1326 
1327 	if (txp_cmd_desc_numfree(sc) < (in_extn + 1)) {
1328 		if_printf(&sc->sc_arpcom.ac_if, "no free cmd descriptors\n");
1329 		return (-1);
1330 	}
1331 
1332 	idx = sc->sc_cmdring.lastwrite;
1333 	cmd = (struct txp_cmd_desc *)(((u_int8_t *)sc->sc_cmdring.base) + idx);
1334 	bzero(cmd, sizeof(*cmd));
1335 
1336 	cmd->cmd_numdesc = in_extn;
1337 	cmd->cmd_seq = seq = sc->sc_seq++;
1338 	cmd->cmd_id = id;
1339 	cmd->cmd_par1 = in1;
1340 	cmd->cmd_par2 = in2;
1341 	cmd->cmd_par3 = in3;
1342 	cmd->cmd_flags = CMD_FLAGS_TYPE_CMD |
1343 	    (wait ? CMD_FLAGS_RESP : 0) | CMD_FLAGS_VALID;
1344 
1345 	idx += sizeof(struct txp_cmd_desc);
1346 	if (idx == sc->sc_cmdring.size)
1347 		idx = 0;
1348 
1349 	for (i = 0; i < in_extn; i++) {
1350 		ext = (struct txp_ext_desc *)(((u_int8_t *)sc->sc_cmdring.base) + idx);
1351 		bcopy(in_extp, ext, sizeof(struct txp_ext_desc));
1352 		in_extp++;
1353 		idx += sizeof(struct txp_cmd_desc);
1354 		if (idx == sc->sc_cmdring.size)
1355 			idx = 0;
1356 	}
1357 
1358 	sc->sc_cmdring.lastwrite = idx;
1359 
1360 	WRITE_REG(sc, TXP_H2A_2, sc->sc_cmdring.lastwrite);
1361 
1362 	if (!wait)
1363 		return (0);
1364 
1365 	for (i = 0; i < 10000; i++) {
1366 		idx = hv->hv_resp_read_idx;
1367 		if (idx != hv->hv_resp_write_idx) {
1368 			*rspp = NULL;
1369 			if (txp_response(sc, idx, id, seq, rspp))
1370 				return (-1);
1371 			if (*rspp != NULL)
1372 				break;
1373 		}
1374 		DELAY(50);
1375 	}
1376 	if (i == 1000 || (*rspp) == NULL) {
1377 		if_printf(&sc->sc_arpcom.ac_if, "0x%x command failed\n", id);
1378 		return (-1);
1379 	}
1380 
1381 	return (0);
1382 }
1383 
1384 static int
1385 txp_response(struct txp_softc *sc, u_int32_t ridx, u_int16_t id, u_int16_t seq,
1386 	     struct txp_rsp_desc **rspp)
1387 {
1388 	struct txp_hostvar *hv = sc->sc_hostvar;
1389 	struct txp_rsp_desc *rsp;
1390 
1391 	while (ridx != hv->hv_resp_write_idx) {
1392 		rsp = (struct txp_rsp_desc *)(((u_int8_t *)sc->sc_rspring.base) + ridx);
1393 
1394 		if (id == rsp->rsp_id && rsp->rsp_seq == seq) {
1395 			*rspp = (struct txp_rsp_desc *)kmalloc(
1396 			    sizeof(struct txp_rsp_desc) * (rsp->rsp_numdesc + 1),
1397 			    M_DEVBUF, M_INTWAIT);
1398 			if ((*rspp) == NULL)
1399 				return (-1);
1400 			txp_rsp_fixup(sc, rsp, *rspp);
1401 			return (0);
1402 		}
1403 
1404 		if (rsp->rsp_flags & RSP_FLAGS_ERROR) {
1405 			if_printf(&sc->sc_arpcom.ac_if, "response error!\n");
1406 			txp_rsp_fixup(sc, rsp, NULL);
1407 			ridx = hv->hv_resp_read_idx;
1408 			continue;
1409 		}
1410 
1411 		switch (rsp->rsp_id) {
1412 		case TXP_CMD_CYCLE_STATISTICS:
1413 		case TXP_CMD_MEDIA_STATUS_READ:
1414 			break;
1415 		case TXP_CMD_HELLO_RESPONSE:
1416 			if_printf(&sc->sc_arpcom.ac_if, "hello\n");
1417 			break;
1418 		default:
1419 			if_printf(&sc->sc_arpcom.ac_if, "unknown id(0x%x)\n",
1420 			    rsp->rsp_id);
1421 		}
1422 
1423 		txp_rsp_fixup(sc, rsp, NULL);
1424 		ridx = hv->hv_resp_read_idx;
1425 		hv->hv_resp_read_idx = ridx;
1426 	}
1427 
1428 	return (0);
1429 }
1430 
1431 static void
1432 txp_rsp_fixup(struct txp_softc *sc, struct txp_rsp_desc *rsp,
1433 	      struct txp_rsp_desc *dst)
1434 {
1435 	struct txp_rsp_desc *src = rsp;
1436 	struct txp_hostvar *hv = sc->sc_hostvar;
1437 	u_int32_t i, ridx;
1438 
1439 	ridx = hv->hv_resp_read_idx;
1440 
1441 	for (i = 0; i < rsp->rsp_numdesc + 1; i++) {
1442 		if (dst != NULL)
1443 			bcopy(src, dst++, sizeof(struct txp_rsp_desc));
1444 		ridx += sizeof(struct txp_rsp_desc);
1445 		if (ridx == sc->sc_rspring.size) {
1446 			src = sc->sc_rspring.base;
1447 			ridx = 0;
1448 		} else
1449 			src++;
1450 		sc->sc_rspring.lastwrite = hv->hv_resp_read_idx = ridx;
1451 	}
1452 
1453 	hv->hv_resp_read_idx = ridx;
1454 }
1455 
1456 static int
1457 txp_cmd_desc_numfree(struct txp_softc *sc)
1458 {
1459 	struct txp_hostvar *hv = sc->sc_hostvar;
1460 	struct txp_boot_record *br = sc->sc_boot;
1461 	u_int32_t widx, ridx, nfree;
1462 
1463 	widx = sc->sc_cmdring.lastwrite;
1464 	ridx = hv->hv_cmd_read_idx;
1465 
1466 	if (widx == ridx) {
1467 		/* Ring is completely free */
1468 		nfree = br->br_cmd_siz - sizeof(struct txp_cmd_desc);
1469 	} else {
1470 		if (widx > ridx)
1471 			nfree = br->br_cmd_siz -
1472 			    (widx - ridx + sizeof(struct txp_cmd_desc));
1473 		else
1474 			nfree = ridx - widx - sizeof(struct txp_cmd_desc);
1475 	}
1476 
1477 	return (nfree / sizeof(struct txp_cmd_desc));
1478 }
1479 
1480 static void
1481 txp_stop(struct txp_softc *sc)
1482 {
1483 	struct ifnet *ifp;
1484 
1485 	ifp = &sc->sc_arpcom.ac_if;
1486 
1487 	ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE);
1488 
1489 	callout_stop(&sc->txp_stat_timer);
1490 
1491 	txp_command(sc, TXP_CMD_TX_DISABLE, 0, 0, 0, NULL, NULL, NULL, 1);
1492 	txp_command(sc, TXP_CMD_RX_DISABLE, 0, 0, 0, NULL, NULL, NULL, 1);
1493 
1494 	txp_rxring_empty(sc);
1495 
1496 	return;
1497 }
1498 
1499 static void
1500 txp_watchdog(struct ifnet *ifp)
1501 {
1502 	return;
1503 }
1504 
1505 static int
1506 txp_ifmedia_upd(struct ifnet *ifp)
1507 {
1508 	struct txp_softc *sc = ifp->if_softc;
1509 	struct ifmedia *ifm = &sc->sc_ifmedia;
1510 	u_int16_t new_xcvr;
1511 
1512 	if (IFM_TYPE(ifm->ifm_media) != IFM_ETHER)
1513 		return (EINVAL);
1514 
1515 	if (IFM_SUBTYPE(ifm->ifm_media) == IFM_10_T) {
1516 		if ((ifm->ifm_media & IFM_GMASK) == IFM_FDX)
1517 			new_xcvr = TXP_XCVR_10_FDX;
1518 		else
1519 			new_xcvr = TXP_XCVR_10_HDX;
1520 	} else if (IFM_SUBTYPE(ifm->ifm_media) == IFM_100_TX) {
1521 		if ((ifm->ifm_media & IFM_GMASK) == IFM_FDX)
1522 			new_xcvr = TXP_XCVR_100_FDX;
1523 		else
1524 			new_xcvr = TXP_XCVR_100_HDX;
1525 	} else if (IFM_SUBTYPE(ifm->ifm_media) == IFM_AUTO) {
1526 		new_xcvr = TXP_XCVR_AUTO;
1527 	} else
1528 		return (EINVAL);
1529 
1530 	/* nothing to do */
1531 	if (sc->sc_xcvr == new_xcvr)
1532 		return (0);
1533 
1534 	txp_command(sc, TXP_CMD_XCVR_SELECT, new_xcvr, 0, 0,
1535 	    NULL, NULL, NULL, 0);
1536 	sc->sc_xcvr = new_xcvr;
1537 
1538 	return (0);
1539 }
1540 
1541 static void
1542 txp_ifmedia_sts(struct ifnet *ifp, struct ifmediareq *ifmr)
1543 {
1544 	struct txp_softc *sc = ifp->if_softc;
1545 	struct ifmedia *ifm = &sc->sc_ifmedia;
1546 	u_int16_t bmsr, bmcr, anlpar;
1547 
1548 	ifmr->ifm_status = IFM_AVALID;
1549 	ifmr->ifm_active = IFM_ETHER;
1550 
1551 	if (txp_command(sc, TXP_CMD_PHY_MGMT_READ, 0, MII_BMSR, 0,
1552 	    &bmsr, NULL, NULL, 1))
1553 		goto bail;
1554 	if (txp_command(sc, TXP_CMD_PHY_MGMT_READ, 0, MII_BMSR, 0,
1555 	    &bmsr, NULL, NULL, 1))
1556 		goto bail;
1557 
1558 	if (txp_command(sc, TXP_CMD_PHY_MGMT_READ, 0, MII_BMCR, 0,
1559 	    &bmcr, NULL, NULL, 1))
1560 		goto bail;
1561 
1562 	if (txp_command(sc, TXP_CMD_PHY_MGMT_READ, 0, MII_ANLPAR, 0,
1563 	    &anlpar, NULL, NULL, 1))
1564 		goto bail;
1565 
1566 	if (bmsr & BMSR_LINK)
1567 		ifmr->ifm_status |= IFM_ACTIVE;
1568 
1569 	if (bmcr & BMCR_ISO) {
1570 		ifmr->ifm_active |= IFM_NONE;
1571 		ifmr->ifm_status = 0;
1572 		return;
1573 	}
1574 
1575 	if (bmcr & BMCR_LOOP)
1576 		ifmr->ifm_active |= IFM_LOOP;
1577 
1578 	if (bmcr & BMCR_AUTOEN) {
1579 		if ((bmsr & BMSR_ACOMP) == 0) {
1580 			ifmr->ifm_active |= IFM_NONE;
1581 			return;
1582 		}
1583 
1584 		if (anlpar & ANLPAR_T4)
1585 			ifmr->ifm_active |= IFM_100_T4;
1586 		else if (anlpar & ANLPAR_TX_FD)
1587 			ifmr->ifm_active |= IFM_100_TX|IFM_FDX;
1588 		else if (anlpar & ANLPAR_TX)
1589 			ifmr->ifm_active |= IFM_100_TX;
1590 		else if (anlpar & ANLPAR_10_FD)
1591 			ifmr->ifm_active |= IFM_10_T|IFM_FDX;
1592 		else if (anlpar & ANLPAR_10)
1593 			ifmr->ifm_active |= IFM_10_T;
1594 		else
1595 			ifmr->ifm_active |= IFM_NONE;
1596 	} else
1597 		ifmr->ifm_active = ifm->ifm_cur->ifm_media;
1598 	return;
1599 
1600 bail:
1601 	ifmr->ifm_active |= IFM_NONE;
1602 	ifmr->ifm_status &= ~IFM_AVALID;
1603 }
1604 
1605 #ifdef TXP_DEBUG
1606 static void
1607 txp_show_descriptor(void *d)
1608 {
1609 	struct txp_cmd_desc *cmd = d;
1610 	struct txp_rsp_desc *rsp = d;
1611 	struct txp_tx_desc *txd = d;
1612 	struct txp_frag_desc *frgd = d;
1613 
1614 	switch (cmd->cmd_flags & CMD_FLAGS_TYPE_M) {
1615 	case CMD_FLAGS_TYPE_CMD:
1616 		/* command descriptor */
1617 		kprintf("[cmd flags 0x%x num %d id %d seq %d par1 0x%x par2 0x%x par3 0x%x]\n",
1618 		    cmd->cmd_flags, cmd->cmd_numdesc, cmd->cmd_id, cmd->cmd_seq,
1619 		    cmd->cmd_par1, cmd->cmd_par2, cmd->cmd_par3);
1620 		break;
1621 	case CMD_FLAGS_TYPE_RESP:
1622 		/* response descriptor */
1623 		kprintf("[rsp flags 0x%x num %d id %d seq %d par1 0x%x par2 0x%x par3 0x%x]\n",
1624 		    rsp->rsp_flags, rsp->rsp_numdesc, rsp->rsp_id, rsp->rsp_seq,
1625 		    rsp->rsp_par1, rsp->rsp_par2, rsp->rsp_par3);
1626 		break;
1627 	case CMD_FLAGS_TYPE_DATA:
1628 		/* data header (assuming tx for now) */
1629 		kprintf("[data flags 0x%x num %d totlen %d addr 0x%x/0x%x pflags 0x%x]",
1630 		    txd->tx_flags, txd->tx_numdesc, txd->tx_totlen,
1631 		    txd->tx_addrlo, txd->tx_addrhi, txd->tx_pflags);
1632 		break;
1633 	case CMD_FLAGS_TYPE_FRAG:
1634 		/* fragment descriptor */
1635 		kprintf("[frag flags 0x%x rsvd1 0x%x len %d addr 0x%x/0x%x rsvd2 0x%x]",
1636 		    frgd->frag_flags, frgd->frag_rsvd1, frgd->frag_len,
1637 		    frgd->frag_addrlo, frgd->frag_addrhi, frgd->frag_rsvd2);
1638 		break;
1639 	default:
1640 		kprintf("[unknown(%x) flags 0x%x num %d id %d seq %d par1 0x%x par2 0x%x par3 0x%x]\n",
1641 		    cmd->cmd_flags & CMD_FLAGS_TYPE_M,
1642 		    cmd->cmd_flags, cmd->cmd_numdesc, cmd->cmd_id, cmd->cmd_seq,
1643 		    cmd->cmd_par1, cmd->cmd_par2, cmd->cmd_par3);
1644 		break;
1645 	}
1646 }
1647 #endif
1648 
1649 static void
1650 txp_set_filter(struct txp_softc *sc)
1651 {
1652 	struct ifnet *ifp = &sc->sc_arpcom.ac_if;
1653 	uint16_t filter;
1654 	struct ifmultiaddr *ifma;
1655 
1656 	if (ifp->if_flags & IFF_PROMISC) {
1657 		filter = TXP_RXFILT_PROMISC;
1658 		goto setit;
1659 	}
1660 
1661 	filter = TXP_RXFILT_DIRECT;
1662 
1663 	if (ifp->if_flags & IFF_BROADCAST)
1664 		filter |= TXP_RXFILT_BROADCAST;
1665 
1666 	if (ifp->if_flags & IFF_ALLMULTI) {
1667 		filter |= TXP_RXFILT_ALLMULTI;
1668 	} else {
1669 		uint32_t hashbit, hash[2];
1670 		int mcnt = 0;
1671 
1672 		hash[0] = hash[1] = 0;
1673 
1674 		LIST_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
1675 			if (ifma->ifma_addr->sa_family != AF_LINK)
1676 				continue;
1677 
1678 			mcnt++;
1679 			hashbit = (uint16_t)(ether_crc32_be(
1680 			    LLADDR((struct sockaddr_dl *)ifma->ifma_addr),
1681 			    ETHER_ADDR_LEN) & (64 - 1));
1682 			hash[hashbit / 32] |= (1 << hashbit % 32);
1683 		}
1684 
1685 		if (mcnt > 0) {
1686 			filter |= TXP_RXFILT_HASHMULTI;
1687 			txp_command(sc, TXP_CMD_MCAST_HASH_MASK_WRITE,
1688 			    2, hash[0], hash[1], NULL, NULL, NULL, 0);
1689 		}
1690 	}
1691 
1692 setit:
1693 	txp_command(sc, TXP_CMD_RX_FILTER_WRITE, filter, 0, 0,
1694 	    NULL, NULL, NULL, 1);
1695 }
1696 
1697 static void
1698 txp_capabilities(struct txp_softc *sc)
1699 {
1700 	struct ifnet *ifp = &sc->sc_arpcom.ac_if;
1701 	struct txp_rsp_desc *rsp = NULL;
1702 	struct txp_ext_desc *ext;
1703 
1704 	if (txp_command2(sc, TXP_CMD_OFFLOAD_READ, 0, 0, 0, NULL, 0, &rsp, 1))
1705 		goto out;
1706 
1707 	if (rsp->rsp_numdesc != 1)
1708 		goto out;
1709 	ext = (struct txp_ext_desc *)(rsp + 1);
1710 
1711 	sc->sc_tx_capability = ext->ext_1 & OFFLOAD_MASK;
1712 	sc->sc_rx_capability = ext->ext_2 & OFFLOAD_MASK;
1713 	ifp->if_capabilities = 0;
1714 
1715 	if (rsp->rsp_par2 & rsp->rsp_par3 & OFFLOAD_VLAN) {
1716 		sc->sc_tx_capability |= OFFLOAD_VLAN;
1717 		sc->sc_rx_capability |= OFFLOAD_VLAN;
1718 		ifp->if_capabilities |= IFCAP_VLAN_HWTAGGING;
1719 	}
1720 
1721 #if 0
1722 	/* not ready yet */
1723 	if (rsp->rsp_par2 & rsp->rsp_par3 & OFFLOAD_IPSEC) {
1724 		sc->sc_tx_capability |= OFFLOAD_IPSEC;
1725 		sc->sc_rx_capability |= OFFLOAD_IPSEC;
1726 		ifp->if_capabilities |= IFCAP_IPSEC;
1727 	}
1728 #endif
1729 
1730 	if (rsp->rsp_par2 & rsp->rsp_par3 & OFFLOAD_IPCKSUM) {
1731 		sc->sc_tx_capability |= OFFLOAD_IPCKSUM;
1732 		sc->sc_rx_capability |= OFFLOAD_IPCKSUM;
1733 		ifp->if_capabilities |= IFCAP_HWCSUM;
1734 		ifp->if_hwassist |= CSUM_IP;
1735 	}
1736 
1737 	if (rsp->rsp_par2 & rsp->rsp_par3 & OFFLOAD_TCPCKSUM) {
1738 #if 0
1739 		sc->sc_tx_capability |= OFFLOAD_TCPCKSUM;
1740 #endif
1741 		sc->sc_rx_capability |= OFFLOAD_TCPCKSUM;
1742 		ifp->if_capabilities |= IFCAP_HWCSUM;
1743 	}
1744 
1745 	if (rsp->rsp_par2 & rsp->rsp_par3 & OFFLOAD_UDPCKSUM) {
1746 #if 0
1747 		sc->sc_tx_capability |= OFFLOAD_UDPCKSUM;
1748 #endif
1749 		sc->sc_rx_capability |= OFFLOAD_UDPCKSUM;
1750 		ifp->if_capabilities |= IFCAP_HWCSUM;
1751 	}
1752 	ifp->if_capenable = ifp->if_capabilities;
1753 
1754 	if (txp_command(sc, TXP_CMD_OFFLOAD_WRITE, 0,
1755 	    sc->sc_tx_capability, sc->sc_rx_capability, NULL, NULL, NULL, 1))
1756 		goto out;
1757 
1758 out:
1759 	if (rsp != NULL)
1760 		kfree(rsp, M_DEVBUF);
1761 
1762 	return;
1763 }
1764